Welcome to Professor Sufei Shi's research group in the Department of Chemical and Biological Engineering at Rensselaer Polytechnic Institute. We are a highly interdisciplinary group with a focus on low dimensional quantum materials. Quantum effects dominate in these materials, which might lead to novel applications in electronic and opto-electronic devices. Famous examples include, but not limited to, graphene, transitional metal dichacogenides (TMDs, such as MoS2), topological insulators, etc.

We integrate material synthesis with state-of-art nanofabrication technique to create structures or devices with control down to nanometer resolution. These structures and devices provide unique platforms to study electron-electron interactions, electron-photon interactions, etc. These interactions are greatly enhanced at low dimensions, and understanding of which expands our fundamental knowledge of these interactions. We also develop spectroscopy tools to better characterize these nanoscale structures/devices by combining quantum transport (electrical) measurement with optical spectroscopy measurements. Examples include times-resolved (~100 fs) scanning photocurrent microscopy, absorption microscopy, photoluminescence/Raman microscopy, etc.